A. - Sir, ___ I come in? - No, you ___ not. You are late. You ___ come to class earlier. B. - Tommy, ___ you help your mother now? - Yes. By the way, dad, I always help her. I know that children ___ help their parents. C. - Jane, your grandad is ill. He is in hospital. You ___ visit him. ___ you do it today? - No, mum, I ___ . Ill go there tomorrow.

Сan, cant, could, can, must, shold, can, cant.
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